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https://www.readbyqxmd.com/read/28449331/mir-130a-as-a-diagnostic-marker-to-differentiate-malignant-mesothelioma-from-lung-adenocarcinoma-in-pleural-effusion-cytology
#1
Rocco Cappellesso, Marco Galasso, Lorenzo Nicolè, Paolo Dabrilli, Stefano Volinia, Ambrogio Fassina
BACKGROUND: Malignant pleural mesothelioma is a rare tumor with a dismal prognosis, usually presenting with recurrent effusions. However, the majority of malignant pleural effusions are due to lung adenocarcinoma (AdC). The distinction between these tumors has considerable therapeutic and medicolegal implications and can be very challenging both histologically and cytologically. Appropriate immunohistochemistry (IHC) is required to support the diagnosis. MicroRNA (miRNA) expression analysis could be a viable diagnostic tool for distinguishing between these tumors...
April 27, 2017: Cancer
https://www.readbyqxmd.com/read/28443609/the-hiv-1-viral-synapse-signals-human-foreskin-keratinocytes-to-secrete-thymic-stromal-lymphopoietin-facilitating-hiv-1-foreskin-entry
#2
Z Zhou, L Xu, A Sennepin, C Federici, Y Ganor, D Tudor, D Damotte, N Barry Delongchamps, M Zerbib, M Bomsel
The complexity of signal transduction resulting from the contact of human immunodeficiency virus type 1 (HIV-1)-infected cells and mucosal cells has hampered our comprehension of HIV-1 mucosal entry. Such process is driven efficiently only by viral synapse contacts, whereas cell-free HIV-1 remains poorly infectious. Using CD4(+) T-cells expressing only HIV-1 envelope inoculated on human adult foreskin tissues, we designed methodologies to identify the signals transduced in foreskin keratinocytes following HIV-1-envelope-dependent viral synapse formation...
April 26, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28439875/epigenetic-repression-of-mir-375-is-the-dominant-mechanism-for-constitutive-activation-of-the-pdpk1-rps6ka3-signalling-axis-in-multiple-myeloma
#3
Shotaro Tatekawa, Yoshiaki Chinen, Masaki Ri, Tomoko Narita, Yuji Shimura, Yayoi Matsumura-Kimoto, Taku Tsukamoto, Tsutomu Kobayashi, Eri Kawata, Nobuhiko Uoshima, Tomohiko Taki, Masafumi Taniwaki, Hiroshi Handa, Shinsuke Iida, Junya Kuroda
Cytogenetic/molecular heterogeneity is the hallmark of multiple myeloma (MM). However, we recently showed that the serine/threonine kinase PDPK1 and its substrate RPS6KA3 (also termed RSK2) are universally active in MM, and play pivotal roles in myeloma pathophysiology. In this study, we assessed involvement of aberrant miR-375 repression in PDPK1 overexpression in MM. An analysis of plasma cells from 30 pre-malignant monoclonal gammopathies of undetermined significance and 73 MM patients showed a significant decrease in miR-375 expression in patient-derived plasma cells regardless of the clinical stage, compared to normal plasma cells...
April 25, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28397402/micrornas-can-effectively-induce-formation-of-insulin-producing-cells-from-mesenchymal-stem-cells
#4
Chunyu Bai, Yuhua Gao, Xiangchen Li, Kunfu Wang, Hui Xiong, Zhiqiang Shan, Ping Zhang, Wenjie Wang, Weijun Guan, Yuehui Ma
MicroRNAs regulate insulin secretion, pancreatic development and beta cell differentiation. However, the function of microRNAs in the formation of insulin-producing cells (IPCs) from adult stem cells is poorly understood. We examine the microRNA expression profile in nestin-positive umbilical cord-derived mesenchymal stem cells (N-UCMSCs) and nestin-positive pancreatic mesenchymal stem cells using a deep sequencing approach. We also selected specific microRNAs for overexpression in N-UCMSCs and found that miR-375 and miR-26a induced IPCs differentiation from N-UCMSCs by downregulating target genes including mtpn, sox6, bhlhe22 and ccnd1...
April 10, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28388561/cell-free-microrna-expression-signatures-in-urine-serve-as-novel-noninvasive-biomarkers-for-diagnosis-and-recurrence-prediction-of-bladder-cancer
#5
Lutao Du, Xiumei Jiang, Weili Duan, Rui Wang, Lishui Wang, Guixi Zheng, Keqiang Yan, Lili Wang, Juan Li, Xin Zhang, Hongwei Pan, Yongmei Yang, Chuanxin Wang
Urinary microRNAs (miRNAs) are potential biomarkers for the noninvasive diagnosis of bladder cancer (BC). In this study, we aimed to develop a urinary miRNAs panel for diagnosing and predicting recurrence of BC. Genome-wide miRNAs analysis by deep sequencing followed by two phases of quantitative real-time PCR assays were performed on urine supernatant of 276 BC patients and 276 controls. We identified a seven-miRNA panel (miR-7-5p, miR-22-3p, miR-29a-3p, miR-126-5p, miR-200a-3p, miR-375, and miR-423-5p) that provided high diagnostic accuracy of BC with an AUC of 0...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28374902/impact-of-microrna-375-and-its-target-gene-smad-7-polymorphism-on-susceptibility-of-colorectal-cancer
#6
Olfat Gamil Shaker, Shereen Rashad Mohammed, Asmaa Mohammed Mohammed, Zeinab Mahmoud
BACKGROUND: Colorectal cancer (CRC) has a high morbidity and mortality. Many studies reported that mir-375 is frequently down-regulated in many cancers including esophageal cancer, hepatocellular carcinoma, breast cancer and leukemias. AIM: Our aim was to study the expression of microRNA-375 and its target gene SMAD-7 polymorphisms (rs4939827) in CRC patients in comparison to control subjects and to correlate these results with clinical data of patients to elucidate their role in pathogenesis and early diagnosis of CRC...
April 4, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28371849/therapeutic-inhibition-of-mir-375-attenuates-post-mi-inflammatory-response-and-left-ventricular-dysfunction-via-pdk-1-akt-signaling-axis
#7
Venkata Naga Srikanth Garikipati, Suresh Kumar Verma, Darukeshwara Jolardarashi, Zhongjian Cheng, Jessica Ibetti, Maria Cimini, Yan Tang, Mohsin Khan, Yujia Yue, Cindy Benedict, Emily Nickoloff, May M Trungcao, Erhe Gao, Prasanna Krishnamurthy, David A Goukassian, Walter J Koch, Raj Kishore
Aims: Increased miR-375 levels has been implicated in rodent models of myocardial infarction (MI) and with patients with heart failure. However, no prior study had established a therapeutic role of miR-375 in ischemic myocardium. Therefore, we assessed whether inhibition of MI-induced miR-375 by LNA anti-miR -375 can improve recovery after acute MI. Methods and Results: Ten weeks old mice were treated with either control or LNA anti miR-375 after induction of MI by LAD ligation...
March 28, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28361910/her-2-expression-regulated-by-downregulation-of-mir-9-and-which-affects-chemotherapeutic-effect-in-breast-cancer
#8
G Sun, L Sun, Y Liu, H Xing, K Wang
This study aimed to identify microRNAs (miRs), the deregulated expression of which leads to the activation of oncogenic pathways in human breast cancer (BC). miRs are classes of endogenous, small, noncoding RNAs that regulate gene expression aberrantly in human tumor tissues. A total of 39 out of 123 tumoral and matched uninvolved peritumoral breast specimens from 3 independent subsets of patients were analyzed for the expression of 851 human miRs using an Agilent platform. The remaining 84 samples were used to validate miRs differentially expressed between tumoral and matched peritumoral specimens by quantitative polymerase chain reaction...
March 31, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28358390/microrna-exocytosis-by-large-dense-core-vesicle-fusion
#9
Alican Gümürdü, Ramazan Yildiz, Erden Eren, Gökhan Karakülah, Turgay Ünver, Şermin Genç, Yongsoo Park
Neurotransmitters and peptide hormones are secreted into outside the cell by a vesicle fusion process. Although non-coding RNA (ncRNA) that include microRNA (miRNA) regulates gene expression inside the cell where they are transcribed, extracellular miRNA has been recently discovered outside the cells, proposing that miRNA might be released to participate in cell-to-cell communication. Despite its importance of extracellular miRNA, the molecular mechanisms by which miRNA can be stored in vesicles and released by vesicle fusion remain enigmatic...
March 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28356269/mir-375-negatively-regulates-the-synthesis-and-secretion-of-catecholamines-by-targeting-sp1-in-rat-adrenal-medulla
#10
Yedan Gai, Jinglin Zhang, Chao Wei, Wei Cao, Yan Cui, Sheng Cui
Adrenal gland is a crucial endocrine gland, and the most important function is to synthesize and secrete catecholamines (CATs) which play crucial roles in balancing homeostasis and the responding to stress. microRNA-375 (miR-375) has been detected to highly express in the adrenal, however its role and underlying mechanism are currently unclear. Herein, our results showed that miR-375 was specifically localized to the rat adrenal medulla chromaffin cells, and miR-375 expressing level decreased, when the rats were exposed to stress...
March 29, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28337746/thymidylate-synthase-is-functionally-associated-with-zeb1-and-contributes-to-the-epithelial-to-mesenchymal-transition-of-cancer-cells
#11
Aarif Siddiqui, Maria Eleni Vazakidou, Annemarie Schwab, Francesca Napoli, Cristina Fernandez-Molina, Ida Rapa, Marc P Stemmler, Marco Volante, Thomas Brabletz, Paolo Ceppi
Thymidylate synthase (TS) is a fundamental enzyme of nucleotide metabolism and one of the oldest anti-cancer targets. Beginning from the analysis of gene array data from the NCI-60 panel of cancer cell lines, we identified a significant correlation at both gene and protein level between TS and the markers of epithelial-to-mesenchymal transition (EMT), a developmental process that allows cancer cells to acquire features of aggressiveness, like motility and chemoresistance. TS levels were found to be significantly augmented in mesenchymal-like compared to epithelial-like cancer cells, to be regulated by EMT induction, and to negatively correlate with micro-RNAs (miRNAs) usually expressed in epithelial-like cells and known to actively suppress EMT...
March 24, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28335433/evaluation-and-adaptation-of-a-laboratory-based-cdna-library-preparation-protocol-for-retrospective-sequencing-of-archived-micrornas-from-up-to-35-year-old-clinical-ffpe-specimens
#12
Olivier Loudig, Tao Wang, Kenny Ye, Juan Lin, Yihong Wang, Andrew Ramnauth, Christina Liu, Azadeh Stark, Dhananjay Chitale, Robert Greenlee, Deborah Multerer, Stacey Honda, Yihe Daida, Heather Spencer Feigelson, Andrew Glass, Fergus J Couch, Thomas Rohan, Iddo Z Ben-Dov
Formalin-fixed paraffin-embedded (FFPE) specimens, when used in conjunction with patient clinical data history, represent an invaluable resource for molecular studies of cancer. Even though nucleic acids extracted from archived FFPE tissues are degraded, their molecular analysis has become possible. In this study, we optimized a laboratory-based next-generation sequencing barcoded cDNA library preparation protocol for analysis of small RNAs recovered from archived FFPE tissues. Using matched fresh and FFPE specimens, we evaluated the robustness and reproducibility of our optimized approach, as well as its applicability to archived clinical specimens stored for up to 35 years...
March 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28320379/mirnas-associated-with-prostate-cancer-risk-and-progression
#13
REVIEW
Hung N Luu, Hui-Yi Lin, Karina Dalsgaard Sørensen, Olorunseun O Ogunwobi, Nagi Kumar, Ganna Chornokur, Catherine Phelan, Dominique Jones, LaCreis Kidd, Jyotsna Batra, Kosj Yamoah, Anders Berglund, Robert J Rounbehler, Mihi Yang, Sang Haak Lee, Nahyeon Kang, Seung Joon Kim, Jong Y Park, Giuliano Di Pietro
Prostate cancer is the most common malignancy among men in the US. Though considerable improvement in the diagnosis of prostate cancer has been achieved in the past decade, predicting disease outcome remains a major clinical challenge. Recent expression profiling studies in prostate cancer suggest microRNAs (miRNAs) may serve as potential biomarkers for prostate cancer risk and disease progression. miRNAs comprise a large family of about 22-nucleotide-long non-protein coding RNAs, regulate gene expression post-transcriptionally and participate in the regulation of numerous cellular processes...
March 20, 2017: BMC Urology
https://www.readbyqxmd.com/read/28319200/induction-of-immunomodulatory-mir-146a-and-mir-155-in-small-intestinal-epithelium-of-vibrio-cholerae-infected-patients-at-acute-stage-of-cholera
#14
Aziz Bitar, Rituparna De, Silvia Melgar, Kyaw Min Aung, Arman Rahman, Firdausi Qadri, Sun Nyunt Wai, Tahmina Shirin, Marie-Louise Hammarström
The potential immunomodulatory role of microRNAs in small intestine of patients with acute watery diarrhea caused by Vibrio cholerae O1 or enterotoxigenic Escherichia coli (ETEC) infection was investigated. Duodenal biopsies were obtained from study-participants at the acute (day 2) and convalescent (day 21) stages of disease, and from healthy individuals. Levels of miR-146a, miR-155 and miR-375 and target gene (IRAK1, TRAF6, CARD10) and 11 cytokine mRNAs were determined by qRT-PCR. The cellular source of microRNAs in biopsies was analyzed by in situ hybridization...
2017: PloS One
https://www.readbyqxmd.com/read/28300567/9-cis-retinoic-acid-modulates-myotrophin-expression-and-its-mir-in-physiological-and-pathophysiological-cell-models
#15
Mariarita Perri, Maria Cristina Caroleo, Nannan Liu, Luca Gallelli, Giovambattista De Sarro, Hiroyuki Kagechika, Erika Cione
Functional studies indicate that essential cellular processes are controlled by Vitamin A derivatives. Among these the retinoic acid isoforms, all-trans- and 9-cis (9cRA), regulate the expression of various genes in both physiological and pathological conditions. Using several in vitro experimental models such as pancreatic β-cells, pre-adipocytes and breast cancer cells with different phenotypes, we demonstrated the capability of 9cRA to modulate myotrophin (Mtpn) and miR-375 expressions. The 9cRA effect in pancreatic β-cells line INS-1 832/13 point out a decreased expression of Mptn at both mRNA and protein levels associated to a concomitant increase of miR-375...
March 12, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28282880/astaxanthin-inhibits-pc-3-xenograft-prostate-tumor-growth-in-nude-mice
#16
Xiaofeng Ni, Haining Yu, Shanshan Wang, Chengcheng Zhang, Shengrong Shen
Prostate cancer (PCa), the most common malignancy in men, is a major cause of cancer deaths. A better understanding of the mechanisms that drive tumor initiation and progression may identify actionable targets to improve treatment of this patient group. As a dietary carotenoid, astaxanthin has been demonstrated to exert beneficial effects against inflammation, cardiovascular disease, oxidative damage, or different cancer sites. This study used intragastric administration of astaxanthin to detect its role on tumor proliferation, apoptosis, microRNA (miRNA) overexpression, and microbacteria composition change by establishing androgen-independent PCa cell PC-3 xenograft nude mice...
March 8, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28269750/micrornas-in-esophageal-squamous-cell-carcinoma-potential-biomarkers-and-therapeutic-targets
#17
Li-Li Mei, Yun-Tan Qiu, Bing Zhang, Zhi-Zhou Shi
Esophageal cancer is a common cause of cancer-related deaths worldwide. Squamous cell carcinoma (SCC) is the major histological type of esophageal cancer in developing countries including China, and the prognosis is very poor. Many microRNAs are involved in several important biological and pathologic processes, and promote tumorigenesis. To better understand the prognostic and therapeutic roles of microRNAs in ESCC, we reviewed the diagnosis and prognosis associated oncogenic microRNAs (e.g. miR-21 and miR-17-92 cluster) and tumor suppressor microRNAs (e...
February 27, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28262546/promotion-effects-of-mir-375-on-the-osteogenic-differentiation-of-human-adipose-derived-mesenchymal-stem-cells
#18
Si Chen, Yunfei Zheng, Shan Zhang, Lingfei Jia, Yongsheng Zhou
MicroRNA plays an important role in bone tissue engineering; however, its role and function in osteogenic differentiation warrant further investigation. In this study, we demonstrated that miR-375 was upregulated during the osteogenic differentiation of human adipose-derived mesenchymal stem cells (hASCs). Overexpression of miR-375 significantly enhanced hASCs osteogenesis both in vitro and in vivo, while knockdown of miR-375 inhibited the osteogenic differentiation of hASCs. Mechanistically, microarray analysis revealed DEPTOR as a target of miR-375 in hASCs...
March 14, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28259929/expression-profiles-and-circulation-dynamics-of-rat-mesenteric-lymph-micrornas
#19
Wakako Sakamoto, Tomohiko Masuno, Hiroyuki Yokota, Toshihiro Takizawa
Mesenteric lymph is vital for immune cell trafficking and intestinal fluid and chyle transport, which aid homeostatic maintenance. There have been few reports investigating the profiles and circulatory dynamics of mesenteric lymph microRNAs (miRNAs). The present study aimed to provide a comprehensive analysis of miRNAs in normal rodent mesenteric lymph. Reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR)‑based array analysis was performed to examine the expression levels of 375 miRNAs in normal rat mesenteric lymph...
April 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28254488/the-small-rna-mir-375-a-pancreatic-islet-abundant-mirna-with-multiple-roles-in-endocrine-beta-cell-function
#20
Lena Eliasson
The pathophysiology of diabetes is complex and recent research put focus on the pancreatic islets of Langerhans and the insulin-secreting beta cells as central in the development of the disease. MicroRNAs (miRNAs), the small non-coding RNAs regulating post-transcriptional gene expression, are significant regulators of beta cell function. One of the most abundant miRNAs in the islets is miR-375. This review focus on the role of miR-375 in beta cell function, including effects in development and differentiation, proliferation and regulation of insulin secretion...
February 27, 2017: Molecular and Cellular Endocrinology
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